I ran across an issue with an app I had distributed with an enterprise distribution certificate. The problem is, after a year, the certificate expired.

What to do? Download the code again, recompile the app, make sure everything works with the latest iOS SDK, etc. I ran into multiple issues doing so as the application I needed to update the embedded provisioning profile where, because of changes in the iOS SDK, some of my code was simply not compatible anymore. It’s a legacy app and nobody wants to update that stuff, no time, no budget, etc.

Then, I came across this brilliant website that explained how to extract the app, inject a new mobile provisioning profile, resign the app and repackage everything. Here’s the code for it: